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Longer-lasting light bulbs: it was complicated

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Further reading 1

What use case does a good rating actually measure? →Start with an incandescent bulb’s lifetime, then examine detergent, a heat pump, a winter cycle route and a food label. Recover the working conditions behind each advertised measure.This video helps answer · Who pays for a longer-lived bulb?

Caption notes

Watson changes the operating voltage of an incandescent lamp and observes brightness and power consumption. Rated lifetime, light per watt and the electricity bill over the product’s life each answer a different purchasing question.

Archived captions (transcription method unspecified) ↗
Original passages · 2
they deliberately traded lifespan for efficiency
Longer-lasting light bulbs: it was complicated · ▶ 26:00–26:03
their operating costs almost always exceeded the purchase cost anyway
Longer-lasting light bulbs: it was complicated · ▶ 26:07–26:17

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